The line graph shows the amount of money Perry spent from July to December.

1. Of the amount Perry spent in September, $160 was spent on food and the remaining amount was spent on transport. How much did he spend on transport in September?
2. In which month did Perry spend $120 more than the previous month? Give your answer in this format. (Eg Jan)

(a)
Amount that Perry spent in September = $474

Amount that Perry spent on transport
= 474 - 160
= $314

(b)
To find an increase in a line graph, look for an increasing slope. 

The 2 increasing slopes are from August to September and November to December. Now, find the month when Perry spent $120 more than the previous month.

Amount that Perry spent in August = $174
Amount that Perry spent in September = $474

Amount that Perry spent in September more than August
= 474 - 174
= $300 (x)

Amount that Perry spent in November = $14
Amount that Perry spent in December = $134

Amount that Perry spent in December more than November
= 134 - 14
= $120 (✓)

The month that Perry spent $120 more than the previous month = Dec

Answer(s): (a) $314; (b) Dec